Answer:
d. positron
that's the answer brainly tells me I need to write at least 20 characters and that's d u m b.
<span>Respiration breaks down the sugar inside its cells. i have answered the question WHEN A PLANT UNDERGOES RESPIRATIONS IT WHAT HAPPENS</span>
it has no effect on the blue litmus.
When it's tested on the red litmus paper it turns blue